def _get_signed_url(self, signal_type=SIGNAL):
"""Create properly formatted and pre-signed URL.
This uses the created user for the credentials.
See boto/auth.py::QuerySignatureV2AuthHandler
:param signal_type: either WAITCONDITION or SIGNAL.
"""
try:
stored = db_api.resource_data_get(self, 'ec2_signed_url')
except exception.NotFound:
stored = None
if stored is not None:
return stored
try:
access_key = db_api.resource_data_get(self, 'access_key')
secret_key = db_api.resource_data_get(self, 'secret_key')
except exception.NotFound:
logger.warning(
_('Cannot generate signed url, '
'no stored access/secret key'))
return
waitcond_url = cfg.CONF.heat_waitcondition_server_url
signal_url = waitcond_url.replace('/waitcondition', signal_type)
host_url = urlutils.urlparse(signal_url)
path = self.identifier().arn_url_path()
# Note the WSGI spec apparently means that the webob request we end up
# prcessing in the CFN API (ec2token.py) has an unquoted path, so we
# need to calculate the signature with the path component unquoted, but
# ensure the actual URL contains the quoted version...
unquoted_path = urlutils.unquote(host_url.path + path)
request = {
'host': host_url.netloc.lower(),
'verb': SIGNAL_VERB[signal_type],
'path': unquoted_path,
'params': {
'SignatureMethod': 'HmacSHA256',
'SignatureVersion': '2',
'AWSAccessKeyId': access_key,
'Timestamp': self.created_time.strftime("%Y-%m-%dT%H:%M:%SZ")
}
}
# Sign the request
signer = ec2_utils.Ec2Signer(secret_key)
request['params']['Signature'] = signer.generate(request)
qs = urlutils.urlencode(request['params'])
url = "%s%s?%s" % (signal_url.lower(), path, qs)
db_api.resource_data_set(self, 'ec2_signed_url', url)
return url
def _get_signed_url(self, signal_type=SIGNAL):
"""Create properly formatted and pre-signed URL.
This uses the created user for the credentials.
See boto/auth.py::QuerySignatureV2AuthHandler
:param signal_type: either WAITCONDITION or SIGNAL.
"""
try:
stored = db_api.resource_data_get(self, 'ec2_signed_url')
except exception.NotFound:
stored = None
if stored is not None:
return stored
try:
access_key = db_api.resource_data_get(self, 'access_key')
secret_key = db_api.resource_data_get(self, 'secret_key')
except exception.NotFound:
logger.warning(_('Cannot generate signed url, '
'no stored access/secret key'))
return
waitcond_url = cfg.CONF.heat_waitcondition_server_url
signal_url = waitcond_url.replace('/waitcondition', signal_type)
host_url = urlutils.urlparse(signal_url)
path = self.identifier().arn_url_path()
# Note the WSGI spec apparently means that the webob request we end up
# prcessing in the CFN API (ec2token.py) has an unquoted path, so we
# need to calculate the signature with the path component unquoted, but
# ensure the actual URL contains the quoted version...
unquoted_path = urlutils.unquote(host_url.path + path)
request = {'host': host_url.netloc.lower(),
'verb': SIGNAL_VERB[signal_type],
'path': unquoted_path,
'params': {'SignatureMethod': 'HmacSHA256',
'SignatureVersion': '2',
'AWSAccessKeyId': access_key,
'Timestamp':
self.created_time.strftime("%Y-%m-%dT%H:%M:%SZ")
}}
# Sign the request
signer = ec2_utils.Ec2Signer(secret_key)
request['params']['Signature'] = signer.generate(request)
qs = urlutils.urlencode(request['params'])
url = "%s%s?%s" % (signal_url.lower(),
path, qs)
db_api.resource_data_set(self, 'ec2_signed_url', url)
return url
def __call__(self, target, creds, enforcer):
"""Check http: rules by calling to a remote server.
This example implementation simply verifies that the response
is exactly 'True'.
"""
url = ('http:' + self.match) % target
data = {'target': jsonutils.dumps(target),
'credentials': jsonutils.dumps(creds)}
post_data = urlutils.urlencode(data)
f = urlutils.urlopen(url, post_data)
return f.read() == "True"
def __call__(self, target, creds, enforcer):
"""Check http: rules by calling to a remote server.
This example implementation simply verifies that the response
is exactly 'True'.
"""
url = ('http:' + self.match) % target
data = {
'target': jsonutils.dumps(target),
'credentials': jsonutils.dumps(creds)
}
post_data = urlutils.urlencode(data)
f = urlutils.urlopen(url, post_data)
return f.read() == "True"
def _get_next_link(request, marker):
"""Return href string with proper limit and marker params."""
params = request.params.copy()
params['marker'] = marker
return "%s?%s" % (request.path_url, urlutils.urlencode(params))
